TPS62065-Q1: Efficiency in low current

Youhei Miyaoka

Intellectual 2045 points

Part Number: TPS62065-Q1
Other Parts Discussed in Thread: TPS628502-Q1

Hi experts,

My customer seek SR which achieve 80%+ when current is 150uA. But in datasheet, efficiency only describe up to 1mA. Do you have 100uA~200uA efficiency data?

And do you have any other part number to fulfill customer's requirements.

Regards,

Youhei MIYAOKA

10 months ago

0 Excel Regidor 10 months ago

TI__Mastermind 30376 points

Hi Miyaoka-san,

Thanks for reaching out to us.

Can you provide the exact Vin and Vout where the customer needs the efficiency at low output current?

By the way, why the customer needs a higher efficiency at lighter load? What rail the device needs to supply? Who is the customer?

Best regards,

Excel

0 Youhei Miyaoka 10 months ago in reply to Excel Regidor

TI__Intellectual 2045 points

Hi Excel-san,

Sorry for the lack of information.

Vin: 5V, Vout:3.3V

I'm asking to the customer about that how to use this DCDC.

For customer info, I'll send you by e-mail.

Regard,

Youhei MIYAOKA

+1 Excel Regidor 10 months ago in reply to Youhei Miyaoka

TI__Mastermind 30376 points

Hi Miyaoka-san,

Please refer to the efficiency data of TPS62065-Q1 below. However, the efficiency at ~150uA load is around 55% only. If the customer needs a much higher efficiency at light load, we can promote TPS628502-Q1, which has a ~75% efficiency at PFM mode (see fig. below).

Let me know your thoughts.

TPS62065-Q1